Investigation of Characterization and Sinterability of Mechanically Synthesized NiTi

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AKSÖZ S., BOSTAN B.

JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, cilt.21, sa.2, ss.437-443, 2018 (ESCI) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 21 Sayı: 2
  • Basım Tarihi: 2018
  • Doi Numarası: 10.2339/politeknik.389617
  • Dergi Adı: JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.437-443
  • Anahtar Kelimeler: Prealloyed NiTi powders, SMA, powder metallurgy, TI SUPERELASTIC ALLOY, POROUS NITI, HYDROGEN ABSORPTION, BEHAVIOR, MICROSTRUCTURE, STRENGTH, IMPLANTS, POROSITY
  • Gazi Üniversitesi Adresli: Evet

Özet

In this study; prealloyed NiTi powders and ball mills with 2%, 4%, 6%, 8% and 10% Zn powder ratios were subjected to mechanical milling for 60 minutes. The milled NiTi + Zn powder mixtures were pressed under 750 MPa pressurize and then sintered at 1000 degrees C for 60 minutes. In order to determine the microstructural changes in the samples which were milled, pressed and then sintered samples; SEM, EDS, DSC and XRD analyses were applied, respectively. Changes in powder morphology were observed, depending of the increasing Zn content in the NiTi + Zn powder mixtures and it was determined that the powders containing 10% Zn completely covered the surface of the NiTi powders in a homogeneous manner after milling.